Question

evolution part 6
katie flack sinopoli
try this!
in mice, black eye color (b) is
dominant to blue eye color (b).
use the diagram to answer
these questions:

• in the gene pool, how many

alleles are...
black? 20
blue? 30
total? 50

• what is the allele frequency

for...
b?
b?

• what is the phenotypic

frequency for...
black?
blue?
*note: black circles represent \b\ allele; gray
circles represent \b\ allele
open-ended question
what percentage of the population has the b allele?
type your answer here

Explanation:

Step1: Calculate allele frequency for b

Allele frequency = (Number of b alleles)/(Total number of alleles)
Number of b alleles = 30, Total number of alleles = 50
$$\text{Allele frequency of }b=\frac{30}{50}=0.6$$

Step2: Convert to percentage

Multiply by 100
$$0.6\times100 = 60\%$$

Answer:

60%